Yaw Rate Sensor – Function, Symptoms, Location, Diagnosis, and Possible DTCs

The Yaw Rate Sensor (YRS) measures the vehicle's rotational movement around its vertical axis. It is a key component of the Electronic Stability Control (ESC), Electronic Stability Program (ESP), Vehicle Stability Control (VSC), and, in some vehicles, it also provides information used by the Supplemental Restraint System (SRS) during rollover detection.

What Is a Yaw Rate Sensor?

YRS = Yaw Rate Sensor

Main Functions

• Measures vehicle rotation around the vertical axis.
• Helps the ESC/ESP system maintain vehicle stability.
• Detects skidding or loss of control.
• Supports rollover detection on some vehicles.
• Communicates with ABS, ESC, and SRS control modules.

Common Symptoms

• ESC or Stability Control warning light ON.
• ABS warning light ON.
• Traction Control warning light ON.
• Airbag warning light on some vehicles.
• Poor stability control performance.

Typical Location

The Yaw Rate Sensor is usually mounted near the vehicle's center of gravity, such as beneath the center console, under the front seats, or on the floor tunnel. The exact location varies depending on the manufacturer and model.

Simple Signal Diagram

 Vehicle Rotation
        │
        ▼
+----------------------+
|  Yaw Rate Sensor     |
|       (YRS)          |
+----------------------+
        │
        ▼
+----------------------+
|  ABS / ESC Module    |
+----------------------+
        │
        ├────────► Stability Control
        │
        └────────► SRS (Some Vehicles)

Possible Diagnostic Trouble Codes (DTCs)

• C1210 – Yaw Rate Sensor Fault (manufacturer-specific)
• C1231 – Yaw Rate Sensor Signal Fault
• C1280 – Yaw Rate Sensor Calibration Required
• C1445 – Yaw Rate Sensor Circuit Fault
• U0123 – Lost Communication with Yaw Rate Sensor Module (manufacturer-specific)
• Manufacturer-specific C-codes

Diagnosis Tips

• Read ABS and ESC fault codes with a compatible scan tool.
• Inspect the sensor connector and wiring.
• Verify power, ground, and communication circuits.
• Perform zero-point calibration after replacement if required.
• Check for water intrusion or physical damage.

Important Note

The Yaw Rate Sensor is primarily part of the ABS/ESC system rather than the SRS. However, some manufacturers use its data to assist rollover detection and advanced occupant protection systems. Sensor location, calibration procedures, and DTC definitions vary by vehicle manufacturer and model.

Frequently Asked Questions

Can a faulty Yaw Rate Sensor affect vehicle handling?

Yes. A failed sensor can disable ESC and traction control, reducing the vehicle's ability to correct skids.

Does a Yaw Rate Sensor require calibration?

Yes. Many vehicles require a zero-point calibration after replacement or wheel alignment.

Can a bad Yaw Rate Sensor turn on the ABS light?

Yes. It can illuminate the ABS, ESC, or Traction Control warning lights, and on some vehicles it may also affect the SRS system.